Current Status and Efforts for theDevelopment of Geothermal
Resources in Oita Prefecture〜 Full Use of Geothermal Energy in Oita
20 November 2017

Oita Prefecture1

Table of Contents
１ Introduction to Oita Prefecture
２ Oita Prefecture's Energy Policy
３ Efforts towards Geothermal Powerin Oita Prefecture
４ Conclusion2

Where is Oita Prefecture?

Oita Prefecture is a municipality located in western Japan in northeastern Kyushu,
a place known as the eastern gateway to Asia.

Oita Prefecture
Area 6,340 ㎢ （about half of the Bayof Plenty Region’s 12,230 ㎢）
Population 1.15 million（about 1/4 of New Zealand’s
4.69 million）

9,374 km from New Zealand to Oita
12.5 hours by plane fromAuckland Airport to Oita Airport(Change at Narita)
Prefecture GDP
52 Bn New Zealand Dollars (2014)

3Oita, the Onsen(hot spring) Capital of Japan● Highest number of onsen sources and yield of onsen water in Japan● A rich variety of onsen, including cold springs, carbonated springs,
sand baths, and mud baths.
● Located in the Ring of Fire along with Rotorua

Cold spring

Ajimu

Carbonated spring

Sand bathBeppu

HitaKokonoe

YufuinOita

Mud bath

Nagayu4

Full of Flavors●Many delicious things nurtured by our rich lands and seas

Bungogyu

Sekiaji

BlowfishToriten

Shiroshitakarei

Barley distilled spirits 5

Oita International Wheelchair Marathon●Held in autumn in Oita every year
●In 1981, it began as the world's first international marathon event
only for people in wheelchairs●Athletes from New Zealand have been participating since thevery first competition. Many foreign athletes also participate.

6

International ONSEN ♨ Summit - OITA Prefecture, JAPAN●25 – 27 May 2018 Held in Beppu City, Oita Prefecture●The first of its kind in the world●Key figures from hot spring resorts around the world will gatherand discuss further development of hot spring resorts●New Zealand’s Rotorua City will participate♨♨♨♨♨♨

7

RUGBY WORLD CUP 2019
●RUGBY WORLD CUP 2019 is coming to Asia for the first time!
●20 Sept. – 2 Nov., 2019 Held in JapanRUGBY WORLD CUP 2019 in Oita
●Five matches in Oita

●2 Oct 2019 New Zealand v Repechage Winner●Oita Stadium is the dome-shaped stadium with anautomatically opening and closing roof. It was used asa stadium during the 2002 Korea Japan FIFA World Cup.

Match schedule in Oita Stadium● 2 Oct 2019
● 5 Oct 2019
● 9 Oct 2019●19 Oct 2019●20 Oct 2019

New Zealand v Repechage Winner
Australia v Americas 2Wales v Fiji
QF1:POOL C 1st v POOL D 2nd
QF3:POOL D 1st v POOL C 2nd8

Table of Contents
１ Introduction to Oita Prefecture
２ Oita Prefecture's Energy Policy
３ Efforts towards Geothermal Powerin Oita Prefecture
４ Conclusion
9

Oita Prefecture Is #1 in Japan for Self-Sufficient Renewable Energy
First place in Japan with a self-sufficiency
rate of renewable energy of 32.2%
Self-sufficiency rate of renewable energy(March 2016)（Unit:%）（単位：％）
30.0

Renewable energy supply(March 2016)（Unit:TJ）（単位：TJ）

35.0

30,000
32.2

22.5

20.0

21.8

20.5

19.7

19.6

15.0

29,622 28,954
Geouse
Biomass

20,000

Small
Hydro
power

15,000

Wind27,240

Solar
Use

25,00025.0
24.9

Source: Chiba University Kurasaka Laboratory
Sustainable Zone Research Group “Sustainable Zone 2016”

26,107 25,980
Geo
use

Small
Hydro
power

Solar

Solar

25,922 25,751
Biomass

Geo

Geo

Small
Hydro
power

WindWindpower

10,000

10.0

Solar
5,000

5.00.0Ｏｉｔａ
大分

KagoshimaAkita Miyazaki
鹿児島 秋田
宮崎 Toyama
富山 Shimane
島根 Gunma
群馬○The most geothermal power generation inJapan○ The largest mega solar in Japan has been

integrated into an industrial area

0SolarSolar

Hokkaido
北海道 Aichi
愛知Ibaraki
茨城 Nagano
長野

Shizuoka
Oita Kagoshima
大分
鹿児島 静岡Breakdown of renewable energy supply in Oita prefecture
Solar heat ２．４％

Biomass ４．１％

Wind ０．６％

Geothermalpower

Small hydropower
１２．２％

Geothermal
use

３６．１％

１２．５％

○Abundant agricultural canals

Solar

Solar

Solar
３２．２％

○Biomass power supply is 8th in Japan10Oita Prefecture and the Ordinance for Promoting the Introduction of Eco Energy●Enforced on 1 April 2003 ※3rd prefecture in the country to do so・ Think on a global scale, act as a region●To actualize an Oita that is ・ Have international cooperation
the leading prefecture in・ Collaborate with citizens, business owners, andenvironmentalism, we...
administration
Promoting the introduction of eco energy that uses thecharacteristics of local nature and industries
Regional promotion that uses environmentally friendly
eco energy and the prevention of global warming

Constructing a society that enables sustainabledevelopment with fewer burdens on the environment11

Oita Prefecture New Energy Vision●Revised March 2016 (enacted March 2002)●Continues to follow the Ordinance for Promoting the Introductionof Eco Energy and the "Promotion of Energy Conservation"
Harmony with nature

Expansion of theintroduction of ecoenergyPromoting growth of
local companies
Improvement of added
value to industries

Demonstrations of practicalapplications of eco energy

Ring of Industry promotion
Recognition of thevalue of eco energy

Promotion oftechnological innovation

Various institutional
reforms
Emergence of power
generation businesses in theregion

Create new services

Secure new revenue
sources

Ring of regional development
Utilization of ICT

Local production of energy
for local consumption

This will contribute to the creation of vitality of region and industry
and make Oita “Japan’s leading prefecture for plentiful energy”

12Oita Prefecture New Energy Vision●Promotion of eco energy introduction and energy saving efforts●Use the Eco Energy Utilization Rate as an index based off of bothof the initiatives above
Eco energy utilization rate (%) ＝２014
Utilizationrate
62％(Numerator) Amount of Eco Energy Introduced (TJ)
(Denominator) Energy consumption (TJ)

Amount Introduced(Increasing the numerator)
・ Expansion of eco energy introduction
Consumption(Decreasing the denominator)
・ Promotion of energy conservation
・ Utilization of hydrogen technology
・ Formation of “smart communities,” etc.

2024
Utilization
rate96％

13

Oita Prefectural Energy Industry Organization●We aim to develop the energy industry into a new driving
industry for the prefecture’s economy●Comprehensive efforts by industry, academia and government
Membership

209 organizations(Companies: １９１ Universities：６ Gov’t Groups：１２ )※As of 1 Nov 2017

Major efforts
Working groups
Forming groups divided
by field and providing
thorough support fromresearch anddevelopment to creating
sales channels.

(Image of a general meeting)

Human resource development &Interactions between members

Develop sales channel

Holding various seminars

・Joint exhibition
・Information
dissemination by
website and e-mailmagazine
14

Oita Prefecture Environmental Impact Assessment Ordinance●Since the introduction of the FIT system in July 2012, renewable energy
projects have rapidly expanded（especially solar power）●Due to increased concern about environmental conservation, theseprojects are subject to environmental assessment beyond legal regulations●Enforced from January 2018
Classification

Law

Ordinance

Type 1

Type 2Type 1

Type 2

Resident
procedures

Performed

Not performed

Performed

Not performed

Consideration
procedure

Required

Voluntary

Required

Voluntary

10,000kW output or more

7,500kW output or more

7,500kW output or more

5,000kW output or more※−Geothermal
Solar powerNot subject to the above※ Overall area of the site more than 20ha (Excluding industrial areas)（Tsukahara Plateau）

15Table of Contents
１ Introduction to Oita Prefecture２ Oita Prefecture's Energy Policy
３ Efforts towards Geothermal Powerin Oita Prefecture
４ Conclusion
16

The birthplace of geothermal power generation in Japan●1925 Third earliest in the world, after Italy and the United States●Uses the fumarolic hole on the north side of Bouzu Shaved HeadHell in Beppu City
●It is our duty to give our respect and gratitude to our predecessors'achievements and to develop geothermal energy

A photo of “Bouzu” Shaved Head Hell17

Japan's largest geothermal power plant Hacchobaru Power Station●110,000 kW output●Unit 1 was completed in 1977, and Unit 2 was completed in 1990
●Hot water generated at the power plant is sent to ryokan andgeneral households●Number of visitors: 23,645 people in 2016; 40,420 people in 2015
●Active as an environmental learning facility and tourist facilities
in addition to generating power（Whole view）（Generator）

18

Binary power stations●Heating and evaporating a substitute medium, like freon, that has a boilingpoint lower than that of water, and using the steam to turn the turbine●It's "binary" because it uses two thermal cycles, the system fromthe heat source and the system from the medium●No new drilling need take place because hot springs that alreadyhave water springing from them can be used
●Electricity can be generated even with relatively low temperature
steam / hot water（YUFUIN-FORESTE-ENERGY）（Sugawara Binary Power Station）

19

Yukemuri power generation system●The world's first total flow power generation was born in Oita
（Uses both hot water and steam）●Developed with the support of the Oita Prefectural Energy Industry Organization●Since cooling water is unnecessary, it can be installed even in areas
without water●The structure is simple and compact and can be placed anywhere●It is possible to bathe with the hot water after power generation（Yukemuri power generation system）

20

A goal of having power stations that can coexist with the region●Establishing "Binary" and "Yukemuri" as new geothermal power
generation methods●Increasing facilities mainly in Beppu city
●Can coexist with hot springs●Stable supplies of electricity and measures against global
warming via coexistence with the region
Total output（KW）

16,000Installation status of binary andYukemuri in Oita Prefecture

Number of power stations（ Cumulative number ）25

14,00020

12,00010,000

合計出力
Total output（ｋW） （KW）
発電所数
Number of power stations（累計）（ Cumulative number ）

15

8,000
106,000
4,000

52,000012008

22009

32010

42011

52012

62013 7 2014 8 2015 9 2016021

Also available for cooking●Uses high temperature hot springs and the heat of the steam fromhot springs to cook at high temperatures and improve taste●Very clean as it does not use gas（Cooking in “Hell” steaming pots）（”Hell” steaming pot）

（Hot spring eggs）（Sea “Hell” and Hot spring eggs）（”Hell” steamed custard）

22

As part of our lives●Hot springs are also drawn in communal baths and everyday homes●Also used for heating, such as low tables recessed in the groundthat are warmed by circulating steam from hot springs（Oita Communal Bath）（A hot spring drawn in the home）（A low “kotatsu” table recessed in the ground）

Uses hot springheat for heating（Beauty salon using geothermal heating）

23

Also in agriculture and fisheries●The goal is to have heating systems that circulate warm water
heated by geothermal energy and do not rely on fossil fuels●Cultivation with clean energy gives products higher added values（In the bell pepper plant）（Bell peppers）（ Bell pepper plant using geothermal power）（Flower cultivation）（Jelly ear mushroom cultivation）（Loach farms using geothermal energy）

24

For sightseeing●Geothermal energy appears in various forms, including as a tourism
resource●There are many visitors to Beppu, where the energy is called Hell

（Foot bath）（Blood Pond Hell）（Shaved Head Hell）（Tornado Hell）

25（Illumination using electricity from geothermal power generation）

Table of Contents
１ Introduction to Oita Prefecture
２ Oita Prefecture's Energy Policy
３ Efforts towards Geothermal Powerin Oita Prefecture
４ Conclusion
26

The Paris Agreement●Adopted at COP 21 in December 2015
（International framework since the Kyoto Protocol）●Aims to make the rise in the average temperature from before theIndustrial Revolution less than 2 degrees●Aims to reduce the greenhouse gas emissions caused by humanactivities to zero by the latter half of this century

Photo：Jiji Press

Maximize utilization of geothermal energy where possible
27

Challenges of geothermal use●Regulatory issues（Most of the suitable land for geothermal use isin national parks）●Understanding the region●Grid connection problems

What is the impact
on nature?
No development innational parks

Won’t the hotsprings dry up?
I cannot connect even
if I generate electricity

28

Oita prefecture fully utilizes geothermal power!
●With the understanding of the area and proper use of appropriate
resources●Full utilization of geothermal to create new vitality in Oita prefecture

Agriculture

Sightseeing

Popularizing
geothermalbasedagriculture
Industry

Installation of power
plants by local companies
Create newtourism resources29

Thank you for your attention

Oita, the Onsen Capital of Japan ♨ Full of flavors
Contact information： Environment and Energy Section
Industry Promotion Division
Commerce, Industry and Labor Department
Oita Prefectural Government
Tel：+81-97-506-3263
e-mail：a14200@pref.oita.lg.jp
Web address ：http://oita-energy.jp/30